Various versions exist but the very early ones are super rare as the notes on vse tell us above. They use op amps and transistor circuitry to construct synthesizer module components. They are pre-patched to a default configuration using shorting jacks. But you can insert an 1/8" plug and interrupt the default signal flow and redirect it as you wish to a great extent with 81 recepticles I think it is. Early versions had the moog filter clone of course and the ARP filters in the later ones. Various keyboards were used also as detailed on VSE which create gate and Control Voltage signals of course and in the later ones have their own LFO for vibrato also.
Lots of dirty sliders. Cailube Faderlube doesn't work great on these for getting rid of stickiness. It seems the plastic likes to hang on the hole. I just got one of these finally! A 2601 later version. Some of the jacks are bad on it. Since the parts are shared in other arps there will be occasionally filter failures I'm sure. I still haven't troubleshot all the ones I got from Tim Smith's collection and so I don't know what usually goes on those. Anyone? I think the S+H also isn't working right so I'll update when I figure it out. Along with the voltge processors section...
Parts: Lots of discrete parts in these. See the previous page for chip interchange notes. Always feel free to ask or check my Parts
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